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IMPORTANT
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Which of the following should be avoided in biological marriage?

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Important Questions on Biology

EASY
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IMPORTANT
General Science for Competitive Exams>Chapter 3 - Biology>MCQs>Q 110
The cause of sweet taste in fruits is ______.
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General Science for Competitive Exams>Chapter 3 - Biology>MCQs>Q 111

Which one of the following pairs is not correctly matched?

Hormone Function
(A) Insulin Regulation of blood glucose
(B) Melatonin Regulation of sleep
(C) Oxytocin Release of milk from mammary glands
(D) Gastrin Regulation of blood pressure
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General Science for Competitive Exams>Chapter 3 - Biology>MCQs>Q 112
Which one of the following organs will not feel any pain on being pricked by a needle?
HARD
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IMPORTANT
General Science for Competitive Exams>Chapter 3 - Biology>MCQs>Q 113
Which of the following has the largest brain in proportion to its body size?
MEDIUM
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IMPORTANT
General Science for Competitive Exams>Chapter 3 - Biology>MCQs>Q 117

Match List-I with List-II and select the correct answer using the codes given below:

List-I (Product) List-II (Source) 
A. Opium 1. Bark
B. Hing 2. Root
C. Rubber 3. Fruit
D. Quinine 4. Stem
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 3 - Biology>MCQs>Q 118

Consider the following statement about haemoglobin:

(1) It carries oxygen in the blood.

(2) lt is an iron-containing compound.

(3) It provides immunity against certain diseases.

(4) lt imparts red colour to the blood.

The correct statements out of these are:

MEDIUM
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IMPORTANT
General Science for Competitive Exams>Chapter 3 - Biology>MCQs>Q 121
The alkaloid caffeine is present in _____.
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IMPORTANT
General Science for Competitive Exams>Chapter 3 - Biology>MCQs>Q 125
The brain is responsible for: